Package org.apache.cassandra.cache

Interface IMeasurableMemory

All Known Subinterfaces:

Clustering<V>, ClusteringBound<V>, ClusteringBoundary<V>, ClusteringBoundOrBoundary<V>, ClusteringPrefix<V>, DeletionInfo, RangeTombstoneMarker, Row

All Known Implementing Classes:

AbstractArrayClusteringPrefix, AbstractBufferClusteringPrefix, AbstractCell, AbstractOnHeapClusteringPrefix, AbstractRangeTombstoneMarker, AbstractRow, AbstractRowIndexEntry, ArrayCell, ArrayClustering, ArrayClusteringBound, ArrayClusteringBoundary, ArrayClusteringBoundOrBoundary, ArtificialBoundMarker, BTreeRow, BufferCell, BufferClustering, BufferClusteringBound, BufferClusteringBoundary, BufferClusteringBoundOrBoundary, CacheKey, Cell, CellPath, CellWithSource, ClockAndCount, ColumnData, ColumnIdentifier, ComplexColumnData, CounterCacheKey, DeletionTime, DeletionTime.InvalidDeletionTime, EncodingStats, KeyCacheKey, LivenessInfo, MutableDeletionInfo, NativeCell, NativeClustering, RangeTombstoneBoundaryMarker, RangeTombstoneBoundMarker, RangeTombstoneList, RowCacheKey, RowIndexEntry, RowWithSource, StreamingState

public interface IMeasurableMemory

Method Summary

Modifier and Type	Method	Description
long	unsharedHeapSize()

Method Details

unsharedHeapSize

long unsharedHeapSize()

Returns:

the amount of on-heap memory retained by the object that might be reclaimed if the object were reclaimed, i.e. it should try to exclude globally cached data where possible, or counting portions of arrays that are referenced by the object but used by other objects only (e.g. slabbed byte-buffers), etc.